linux-kernel - [PATCH v3 18/46] perf/core: add arch_info field to struct perf

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1477787923-61185-19-git-send-email-davidcc@google.com>
Date:   Sat, 29 Oct 2016 17:38:15 -0700
From:   David Carrillo-Cisneros <davidcc@...gle.com>
To:     linux-kernel@...r.kernel.org
Cc:     "x86@...nel.org" <x86@...nel.org>, Ingo Molnar <mingo@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Andi Kleen <ak@...ux.intel.com>,
        Kan Liang <kan.liang@...el.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Vegard Nossum <vegard.nossum@...il.com>,
        Marcelo Tosatti <mtosatti@...hat.com>,
        Nilay Vaish <nilayvaish@...il.com>,
        Borislav Petkov <bp@...e.de>,
        Vikas Shivappa <vikas.shivappa@...ux.intel.com>,
        Ravi V Shankar <ravi.v.shankar@...el.com>,
        Fenghua Yu <fenghua.yu@...el.com>,
        Paul Turner <pjt@...gle.com>,
        Stephane Eranian <eranian@...gle.com>,
        David Carrillo-Cisneros <davidcc@...gle.com>
Subject: [PATCH v3 18/46] perf/core: add arch_info field to struct perf_cgroup

This is the first patch for cgroup support in this series.

Adds a new field to perf_cgroup that is used by intel_cmt pmu to
associate a monr with a perf_cgroup instance.

Signed-off-by: David Carrillo-Cisneros <davidcc@...gle.com>
---
 include/linux/perf_event.h | 4 +++-
 kernel/events/core.c       | 2 ++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 0202b32..406119b 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -815,7 +815,9 @@ struct perf_cgroup_info {
 };
 
 struct perf_cgroup {
-	struct cgroup_subsys_state	css;
+	/* Architecture specific information. */
+	void				 *arch_info;
+	struct cgroup_subsys_state	 css;
 	struct perf_cgroup_info	__percpu *info;
 };
 
diff --git a/kernel/events/core.c b/kernel/events/core.c
index d99a51c..0de3ca5 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -10739,6 +10739,8 @@ perf_cgroup_css_alloc(struct cgroup_subsys_state *parent_css)
 		return ERR_PTR(-ENOMEM);
 	}
 
+	jc->arch_info = NULL;
+
 	return &jc->css;
 }
 
-- 
2.8.0.rc3.226.g39d4020